ports Flashcards
Port 20
FTP Data Transfer – Used for transferring files between a client and server in FTP.
Port 21
SFTP-Used for controlling FTP communication (commands and responses).
Port 22
Secure Shell-Secure remote login and encrypted communication for command-line access.
Port 23
Telnet – Unencrypted remote login service, now rarely used due to security risks.
Port 25
SMTP (Simple Mail Transfer Protocol) – Used for sending emails between mail servers.
Port 53
DNS (Domain Name System) – Resolves domain names to IP addresses (name-to-IP mapping).
Port 80
HTTP (HyperText Transfer Protocol) – Used for standard web traffic (unencrypted).
Port 110
POP3 (Post Office Protocol version 3) – Used by email clients to retrieve messages from a mail server.
Port 143
IMAP (Internet Message Access Protocol) – Used for retrieving emails from a mail server (more advanced than POP3).
Port 389
LDAP (Lightweight Directory Access Protocol) – Used for accessing and managing directory services (e.g., Active Directory).
Port 443
HTTPS (HyperText Transfer Protocol Secure) – Secure, encrypted communication used by websites (standard for secure web browsing).
Port 3306
MySQL – Used for database management and communication between MySQL servers and clients.
Port 69
TFTP (Trivial File Transfer Protocol) – A simple file transfer protocol, typically used for booting and transferring configuration files.
Port 995
POP3S (POP3 Secure) – Secure version of POP3 for retrieving emails from mail servers over SSL/TLS encryption.
Port 1433
MS SQL Server – Default port for Microsoft SQL Server to communicate with client applications.
Port 989
FTPS (FTP Secure) – Secure version of FTP that uses SSL/TLS encryption for data transfer.
Port 161/162
SNMP (Simple Network Management Protocol) – Used for managing and monitoring network devices like routers, switches, and servers.
Port 465
SMTPS (Secure Mail Transfer Protocol) – Used for sending emails securely over SSL/TLS encryption, typically for SMTP over a secure connection.
Port 514
Protocol for sending system log or event messages to a remote server for monitoring.
Port 631
IPP (Internet Printing Protocol) – Used to manage print services over the network.
Port 3389
RDP (Remote Desktop Protocol) – Used to connect to Windows machines remotely and access a graphical desktop.
Port 5432
PostgreSQL Database – Default port for PostgreSQL database management system.
Port 5900
VNC (Virtual Network Computing) – Used for remote desktop sharing. It allows graphical desktop access over a network.
Port 8000
HTTP Alternate (HTTP Server) – Commonly used for web servers when the default port 80 is in use or blocked.
What is Port 8080
HTTP Alternative (Web Server) – Often used for HTTP traffic as an alternative to Port 80 (common for testing or development purposes).
Port 8888
Web Services (Alternative HTTP port) – Often used for web applications, Jupyter notebooks, and other non-standard HTTP services.
Port 1812
RADIUS (Remote Authentication Dial-In User Service) – Used for authenticating and authorizing network access, primarily in VPNs or Wi-Fi networks.
Port 2049
NFS (Network File System) – Used for file sharing between Linux/Unix systems over the network.
Port 3307
MySQL Cluster – Default port for MySQL Cluster nodes.
Port 5060
SIP (Session Initiation Protocol) – Used for establishing, maintaining, and terminating voice and video calls over the internet (VoIP).
6660-6669
IRC (Internet Relay Chat) – Used for Internet Relay Chat services to communicate through text in real-time.
Port 27017
MongoDB – Default port for the MongoDB NoSQL database.
Port 1723
PPTP (Point-to-Point Tunneling Protocol) – Used for creating virtual private network (VPN) connections over the internet.
Port 445
SMB (Server Message Block) – Used for file and printer sharing. SMB is often targeted by ransomware attacks, such as WannaCry
Port 123
NTP (Network Time Protocol) – Used for synchronizing clocks across devices
Port 67
DHCP-Dynamic Host Configuration Protocol
Port 169
APIPA- Automatic IP Private Access
